Automatic alarm-whistle for motor-cars.



A. H. CLARK.

AUTOMATIC ALARM WHISTLE FOR MOTOR CARS.

APPLICATION 11.50 JAN.22. 1915'.

Pfitented Ju e 27, I916."

vF 5 m MIA/5858.

. To all whom it may concern:

Be it known that 1,. ALFRED H. CLARK, a citizen of the United. States, residing at Bridgeport, county, of Fairficld, State of Connecticut, have invented an Improvement in Automatic Alar1n-lVl1istles for Motor- Cars, of which the following is a spccific'zv tion.

an alarm at crossings, corners or wherever required, by a simple movement of a key by foot or hand, and which by removal of the key will become a burglar alarm and will leave the mechanism in such condition that starting of the engine will automatically blow the whistle, the alarm being continuous I so long as the engine is running, and it being impossible to stop the whistling exceptby insertion of the proper key;

With these and other objects in view I" have devised the novelalarm whistle which I will now'describe, referring to' the acco'm panying drawing forming a part of. this specification andusing reference characters to indicate the several. parts.

Figure 1 is a section of the floor of a motor-car showing the application thereto of the controlling mechanism of my novel alarm, whistle; Fig. 2 an inverted plan View partly V in section of the whistle'and the valve mechanism, and Fig. 3 an elevation partlybroken away corresponding with Fig. 2.

10 denotes the whistle which may be of any ordinary orpreferred construction and has threaded engagement with a hub upon a valve body 11. The valve body is shown as provided with a. clamp 12 by which it is removably secured to the exhaust pipe 13 of an engine. p

21 denotes a chamber at one end of the body, 15 a valve seat within the chamber, 15 the disk and 16 the stem 'WlllCll passes MS through a housing 17. The stem is provided with a collar 18 within the honslng,

and a spring 19 hearing against the outer end of the housing and the collar acts to normally hold the'disk in the closing position,

so that the exhaust cannot escape through v the valve but must pass through the whisthe and cause an alarm. The housing valve,

and stem are carried bya bridge piece 20 which crosses but does no; close the open outer end of the chamber. The brid e piece is show s secured to he valv hov bv a Specification of Letters Patent. Application filed. January a, 1915.

This invention has for its object'to pro -vide an exhaustop'erated whistle for motor- Annamaria ALARM-WHISTLE moron-cans.

Patented June at, rare.-

Serial ac. 3,?40.

. pin 22 which engages the ,partswith a drive fit and a stud 23 which has a reduced end passing through the bridge piece and having threaded engagement with the body. A valve lever 24: has its fulcrum in the outer end of the stud and one arm thereof is pivoted tothe outer end of the valve stem.

Turning 'now to Fig. 1, 25 denotes the floor of a motor-car in which is secured a casing 26 having a face plate 27 secured to the floor. 28 denotes a bell crank leverful- Crumed in the casing and having a relatively long arm extending outside of the casing which is connected by means of a chain or cord 29 withtlie free armof lever 2-1. The other arm ofthe bell crank lever is suitably casing. This key through a slot 31 in the gfa-'ce plate and is provided with a shoulder 32 which is, adapt- 1 ed to'engage the under side'of the face plate atone endof the slot, as at -A spring 3% 'within the casing bears against the edge of having the the key opposite to the edge shoulder and forces the key forward retaining the shoulder in engagement with the face plate, as shown in full lines in'Fig. 1. The I upper end of the key is shown as provided with a handle or .foot piece formed by twisting the metal. It will of course be Obvious that the location of this controlling mechanism or whether it is operated by the hand or the foot Is immaterial so far as ciple of the invention is concerned.

The operation is as follows: Spring 19. is strong enough to close the valve the instant it is permitted to do so by the controlling mechanism, the closing position being indicated by dotted llnes 1n Flg. 2. ll lien the valve is opened, see full line position 111 Fig.

' 2, the exhaust will naturally follow the path ofleast resistance andc pass out through chamber 21. lVhen the valve is closed. however, the exhaust must pass out through the whistle and sound an alarm. The normal running position of the controlling mechanism is as shown. in Fig. 1. the shoulder upon the key being retained in engagement with the face plate by spring 34. To sound an alarm the operator kicks or pushes the key backward against the power-of spring 3%. The, instant the key is disengaged springlt will close the valve and will move the bell crank lever and'key to the dotted 119".

line position in F ig. 1. The alarm will continue so long as the parts remain 111 this pothc prin I lever and-the valve lever and a removable key' adapted to engage the bell crank lever to sitiona To stop the alarm it is simply required to push the key downward which will swing the bell crank lever to the full line position and will lift the valve disk away from the seat against the power of spring 19,

as in Fig. 2, which stops the alarm. The

instant the shoulder on the key passes below the face plate, spring 34: will move the key I to the engaging position, 'as in full lines in Fig. 'l,'and lock the valve in the open position.

Suppose now "leavethe car and wishes the alarm sounded Y Q should anyone attempt to start it. 1-5

' stopped by insertion and proper, manipula-' as before- Should anyone start the'car now,

the exhaust ,from the engine will sound the,

whistle and the alarm will continue until the engine is stopped or until the alarm is tion of the key, to cause the bell crank lever to open the valve.

v Having thus described my invention, I

' retains the valve claim: g

1.. An alarm of the character described comprising an exhaust operated wh1 stl e, a

valve adapted to permit escape of the exhaustwithout sounding the whistle,a spring for closing the valve, controlling connec' tions and a removable key/which normally open against the power of the spring. V

2. An alarm of the character described comprising an exhaust operated whistle, a

1 valve adaptedto permit escape ofithe exhaust without soundingthe whistle, aspring I for closing'the valve, 2. valve'lever, and controlling mechanism comprising a bell crank lever, a connection between said bell crank lock the valve open-against the power of the spring. e I v.

3.- In combination in an alarm, an exhaust valve lever comprising a bell crank lever, a casing in which said, bell crank 'levcr 1s pivoted and which is provided with a'-face plate having a. slot, a removable key adapted to be passed into the slot and to engage the an exhaust operated whistle, a valve'adapted to permit escape of the exhaust wlthout sounding the hat the operator desires to He Sim-- ply disengages the key as before and removes I it, which permits spring 19 to close the valve inen ,whistle, a spring for closing the valvef a valve lever, and means for operating the valve lever c'omprisinga bell crank lever, a I

'-casing. in which said bell crank lever is pivoted and which is provided with a face platehaving a slot, a removable key provided with a shoulder and adapted to be passed into the slot. and to engage the bell crank lever, and a spring acting to retain the shoulder in engagement with the face plate at one end ofthe slot to lock the valve in the vop'en position. a v

5. In combination in an alarm, a valve body having means for attachment to a pipe and at the other end, an open chamber, a whistle attached to the body,a valve seat in the chamber, a spring pressed disk adapted to enga'ge'the seat, means for raising the disk against the power of the spring and aremovable key adapted 'to lock the disk in the raised position. I

6. In combination in 'an alarm, a valve body having means for attachment to a pipe and at the other end'an open chamber, a

whistle attached to the body, a valve seat in the chamber, a spring pressed disk adapted to'engage the seat and provided with a stem, a valve lever pivoted to the stem, a bell crank lever, a connection between said levers and a removable key adapted to engage the bell crank lever to lock the disk in the raised position. I

7. ,In c'omb'nation in an alarm, a valve body havingmeans for attachment to a pipe and atthe other end an open chamber, a

whistle attached to the body, a valve seat in the chamber, a saring pressed disk adapted 1 to engage the sea and having a stem, a valve lever pivoted to said stem, a bell crank lever and connections to the valve lever, and a removable key fadapted to lock the disk in the raised position.

8. In combinatlon in an alarm, a valve body having means for attachment to a pipe and-at the other end an open chamber, a whistle attached to the body, a valve seat in the chamber, a spring pressed disk adapted to 'engag'ethe seat, a bell crank lever and connections to the valve lever, a removable key adapted to engage the bell crank lever and spring acting to' retain the key in a locking position-with the valve raised.

In testimony whereof I aflix my signature inpresence of two witnesses, bell" crank lever and means'for retaining the a key in the operative position.

-' 4. In combination in an alarm ALFRED H. CLARK.

VVi tnessesz I A... C. CARROLL,

. Y AQM. INGoLnsB' 

